Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4DLR callsign genealogy
Currently held by ROTHBERG, DONNA L
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by W4DLR's current licensee, walking backwards.
- Reddick, David LSCgranted 2021-03-01cancelled 2021-04-23
Successor callsigns
Callsigns held now by people who previously held W4DLR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4DLR, oldest first.
- ROTHBERG, DONNA L MA2007-12-05 → cancelled 2020-01-24
- Reddick, David L SC2021-04-23 active